Yes, sound travels across the water,' Mr Powell agreed.

Did you ever see anyone suspicious?'

Not really. We did complain about the dogs being loose. They barked all night when they first arrived.'

When was that?'

Quite recently. I saw a tall man, out by the boat hut, and I said to him that we were concerned about the dogs. He was quite pleasant and said he would keep them to the front of the house.'

Was this Mr Orso?'

No, I think it was his chauffeur. Anyway, we had no real problems again; they do still bark, but it's not so intrusive.'

Was there anything else? We are really interested in the people that Mr Orso has staying with him.'

There was only the one time; it was very strange,' said Mrs Powell.

Mr Powell looked at his wife. Yes, that was very strange. When was it?'

A few weeks ago, maybe even more.'

Langton waited: they were both wrapped up in trying to pinpoint the exact date.

Finally, Mr Powell said gravely, We wondered if someone had broken in.'

It's amazing: the echo is so loud, even with the wood in between,' mused Mrs Powell.

You said it was possible someone had broken into the main house, do you mean?'

I don't know. They were searching around the water's edge with flashlights, and looking into the boathouse.'

Before that, we heard children. They have a child, don't they?' said her husband.

Langton was losing patience, so Anna took over. What she was able to piece together was that the couple had heard children's voices and then some kind of argument. It had been so loud that Mr Powell had got up, as it was very latewell, to the elderly couple it wasthey thought it was about ten in the evening. He had taken a flashlight and walked through the woods and to the edge of the lake; then it had gone silent.

Mrs Powell then interjected to say that they had found the small rowing boat on their side of the lake. There was an old rope attached to the small jetty; you could, she said, literally pull yourself across from one side to the other.

Langton coughed. So what, you think someone got into the boat and pulled themselves across?'

Well, that's what we thought, but they weren't in the woods.' Mr Powell puffed himself up. I know that because I did a good search around. I had my flashlight with me, and my cosh, so if anyone was trying to break into our cottage...'

Langton sighed. The interview had really tried his patience, but at least now they had the Powells' permission for officers to camp out on their land. He was just worried that the General', as he nicknamed Mr Powell, might give the game away with his flashlight and cosh!

Anna called Alison to say that, when she spoke to Keith, could she ask him if he was ever in a rowing boat with Sickert.

It all adds up, you know,' she told Langton. Dogs arriving: could be the ones from Peckham. Then to hear kids' voices by the lake and some kind of argumentmaybe that's how Sickert got the kids out of there. It would also make sense of why Orso wants that boundary line: he could fence in the property.'

Langton leaned over and ruffled her hair. Little brain never stops ticking!'

She hated people who ruffled her hair!

He didn't notice her response, however, as he checked his watch. Mike must be in there by now.'

Mike Lewis, wearing a Gas Board boilersuit and accompanied by a real Gas Board official, was being shown to the back kitchen entrance by the tall man they knew as the driver. The kitchen door was opened by a good-looking black woman in her thirties. She was nervous, but gestured for them to come in.

The kitchen was massive, with a marble floor and a square central marble-topped chopping area; above it were rows of copper pans and utensils. There was a large round pine table in the bay window, which overlooked the lake. The table was set for lunch: four places.

The Aga no work,' she said, pointing.

They kneeled down in front of it, as she hovered.

Mike then got up and turned to the woman. This might be a mains gas problem; does this also heat the water?'

She looked confused.

Only I'll need to check the water tanks.'

Excuse me.' She walked out. Mike had the tiny microphone in place beneath the table within seconds.

What is the problem?' This was the elegant woman seen driving in and out.

We think you have a gas block but, as this Aga also heats your water, I will need to look into your boiler room. Have you turned off the main gas taps?' He showed her his fake ID. Are you the owner?'

I am Mrs Orso. Ella, stay in the kitchen please,' she snapped, then gestured for Mike to follow her.

According to Mike, compared to the house in Peckham, this place was like Buckingham Palace. It was very classy: full of antiques and clean as a new pin. He had not been able to get any microphones in the main dining room, lounge, or guest bedrooms, but he had one in the kitchen, one on the staircase close to the front door, another on the first-floor landing and one in the master bedroom.

It's a huge place, bloody massive; from the plans, you can't really tell just how big it is. There are two Alsatians chained up in a kennel at the front by the garage. The rear is clearaccess would be easy from across the lake, with good coverage from the woodsbut the front is like Fort Knox. You've got the gates, that high fence, and a wall with a dense hedge all the way round. They also have a lot of automatic security lights; these are positioned right the way round the house and gardens. There's a wine cellar, but we couldn't get down there.'

Harry and Brandon arrived, and gave their report. They had checked out the delivery lorries that belonged to the warehouse and would now process all the known employees. They had also discovered that Orso had shipped the same cargo into the USA.

Who buys all these bloody baskets?' Harry said disgustedly.

Same masks as the ones in Peckham house,' Brandon noted, then looked to Mike Lewis. How did the gas fitting go?'

Okay. They're planted, but sadly not in the main rooms. We saw no one apart from a very nervous servant girl and Mrs Orso, who's a piece of work.'

Langton sighed. We've also no sighting of this guy Emmerick, or the other men in the house, apart from the driver.'

Big place though; there was a whole floor I couldn't get to,' Mike said.

Langton sighed again, then looked up as the sound engineer opened the door and gestured for him to come into the van parked outside. There was a four-man team closeted in the van, working round the clock for as long as it took to get a result. Langton entered, and one of them passed him a set of headphones.

Phone?' he asked.

Nokitchen microphone.'

It was Mrs Orso and she was screaming. How can you ruin a steak, how can you ruin a steak? This is fillet steak, do you know how much this cost? What each of these steaks cost? Just get out of my way, get out!'

There was a clatter and rattle of what sounded like pans.

She has been trouble from day one. I want you to get rid of hershe is driving me crazy! She still has no idea how to use the iron. I had to show her how to work the dishwasher, never mind the tumble-dryer. I want you to get me someone else.'

The voice was male, soft and cultured. Make do with her until we leave.'

How long is that going to be? We can't keep taking Rose in and out of school; it's very unproductive for her. Will you have this one? It's the only one not spoilt. You know what I caught her doing? Boiling it! She was boiling fillet steak!'

Yeah, well, they eat dogs where she came from.' This was another male; a cruder voice, lower-pitched.

Langton listened attentively. There was the sound of crockery and cutlery, and then Mrs Orso again.

There's some salad, but God only knows what she would have put on that. She can't even mix a simple olive oil and vinegar dressing.'

Gimme some Hellmann's,' said the crude voice.

Sweetheart, go and see Rose, and get David in; maybe he likes shoe leather.'

There was a laugh, again from the crude voice. He'd eat it if it was pussy.'

That's enough; keep your mouth clean round my wife!'

Langton felt the sweat run down from his armpits. That's got to be Emmerick; so if she's gone to get David, who's the big mouth?'

They listened as cutlery hit crockery; then in came footsteps and voice three.

I've had Franklin on the phone. He says there's been customs officers crawling all over the warehouse, saying some bloke's been picked up for taking bribes.'

Wasn't our man,' said Emmerick.

They were there for a hell of a long time and he got into a panic.'

Too late. The cargo was checked and clean, so just stay calm.'

I am calmI just thought you'd want to be informed. You know I didn't like that prick from Parkhurst coming on to me.'

Then lose the phone!' Emmerick again.

Christ, this is tough. I can't eat this shit,' said the crude voice.

There was a crash, as what sounded like a plate hit the floor and broke.

You are beginning to get on my nerves. If you can't eat it, give it to the dogs, but you chuck one of my dinner plates around again and I'll-'

Sorry, sorry, but it was disgusting. Gimme the Hellmann's; I'll have some salad. I've not had anything to eat since breakfast and I'm starving. Being stuck up there is starting to drive me nuts. Maybe send the bitch Ella up to make my bed.'

You know, sometimes your audacity makes my skin crawl. You didn't even consider what problems you caused by handing her over to me, did you?'

I didn't know the prick was gonna turn up here.'

No, but he did.'

My steak's okay,' David interjected.

There was a pause as the crockery and cutlery clanked; then there was the sound of a cork being popped open, wine being poured and glasses clinking.

How long will it take for Milton to get the gear ready? I've been printing them off for fucking years with no problem; now he's dicking us around. When is he coming?' asked the crude voice.

When he's ready. If you hadn't fucked up at the house, none of this would have been a problem. In fact, you started going off the wall with that girl. Ever since then, you have been screwing up and we have been trying to clean up after you, so don't push me. I don't like it.' Emmerick sounded tense.

Yeah, well, we all know why you put up with me: take a look around you! And it's not just this placeyou need me. You need to treat me right and with respect, man.'

I got some new videos for you,' said David.

I fucking need something; I'm going stir crazy stuck up there.'

They're on the hall table,' said David.

There was the sound of a scraping chair, more wine being poured and then receding footsteps.

You got a real problem with him,' said David.

I know,' responded Emmerick.

How deep is that lake?'

There was a soft laugh; then footsteps as Mrs Orso walked back in.

You want coffee? I've also got some plum tart.'

A second officer put his hand up. Langton watched as he switched to a different wire transmitter, then listened. They were picking up the microphone hidden in the hall.

Hello, sweetheart, how was school today?' It was the crude voice again.

There were giggles and childish laughter, then footsteps.

Rose, go into the loungenow.' Mrs Orso.

More footsteps; then Mrs Orso back in the kitchen.

I told you not to let him even eat with us, let alone move in here. I don't want that animal anywhere near her.'

No one had said anything yet, but Langton was certain that the crude-voiced animal in question had to be Camorra.

Coming in now were the checks on the employees of Orso's company. Brandon and Harry had taken details, not just of the men working there at the present time, but all employees from the past two years. The list of names and addresses on Orso's payroll was endless, and they kept coming up as not registered.

Mike Lewis was nonplussed and contacted the Serious Fraud Squad: hundreds of thousands of pounds were being moved around in pay cheques.

They ascertained that the employees were illegal immigrants. The company opened bank accounts using their names. The cash was later transferred back into Orso's company, as sales.